OS/2 Version 2.0 provides a tool that can enable execution of multiple operating systems on the same physical machine, with selection of an operating system by the user at boottime. This capability is provided by an OS/2 Version 2.0 feature known as Boot Manager.
Using Boot Manager, the user may select from various operating systems such as DOS, OS/2 Version 1.x, OS/2 Version 2.0 or AIX. Other operating systems may also be supported, provided they do not directly modify the master boot record of the fixed disk. With this feature, OS/2 V2.0 is now capable of installing to and initializing from a logical disk, other than C:. For further details on Boot Manager and its implementation, see Boot Manager.